Electromagnetic induction basis for: MCQ with Answer and Explanation
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Question #1
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Two waves interfering at a point have a path difference of lambda / 2. Their corresponding phase difference is exactly:
Correct Answer: Option A
Explanation:
The relationship between phase difference (phi) and path difference (delta x) is given by the formula phi = (2pi / lambda) * delta x. Given a path difference of lambda / 2, substitute this into the formula: phi = (2pi / lambda) * (lambda / 2) = pi radians. This indicates strictly destructive interference.
The relationship between phase difference (phi) and path difference (delta x) is given by the formula phi = (2pi / lambda) * delta x. Given a path difference of lambda / 2, substitute this into the formula: phi = (2pi / lambda) * (lambda / 2) = pi radians. This indicates strictly destructive interference.
Question #2
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The time period of a mass-spring system depends on
Question #3
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The ripple factor of a full wave rectifier is approximately
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